Lead wire routing and sealing assembly for large electric motor
US5949167A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1998 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Jul 22, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/225
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Lead wires of large electric motors are routed through annular shrouds located inside of the motor housing to surround respective stator coilheads. Each of the shrouds includes at least one attachment portion defining an opening for passage of the leads. In one embodiment, a support element defining a lead channel aligns with the lead opening. The support element includes a mounting structure for attachment of a conduit box thereon. A seal arrangement having a planar seal element may be provided in the lead channel to support and separate the individual leads, while providing a seal to inhibit passage of cooling air from the housing interior into the conduit box. In another embodiment, a cover arrangement is attached directly to the attachment portion of the shroud. The cover arrangement may include a flexible gasket juxtaposed to a rigid cover plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.